Spectrum detection apparatus

US10502620B1 · kind B1 · utility

Assignee

• BOE Technology Group Co., Ltd. · CN

Inventors

• Xianqin Meng · Beijing, CN
• Wei Wang · Beijing, CN
• Fangzhou Wang · Beijing, CN
• Xiandong Meng · Beijing, CN
• Jifeng Tan · Beijing, CN
• Xiaochuan Chen · Beijing, CN
• Jian Gao · Singapore, SG
• Qiuyu Ling · Beijing, CN
• Xue Dong · Beijing, CN

Key dates

• Filing date: May 8, 2019
• Grant date: Dec 10, 2019
• Expiry date: May 8, 2039

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B2006/12138
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A spectrum detection apparatus is disclosed, including at least one spectrum detection unit. Each spectrum detection unit includes a light source and an optical substrate, including an optical medium layer, the optical medium layer includes a first surface and a second surface opposite to the first surface, and the first surface is closer to the light source than the second surface. The optical substrate further includes a light inlet, a first light-shielding layer, a grating and a light outlet sequentially arranged on the first surface and in an extension direction of the optical medium layer, the first light-shielding layer is configured to reflect target light and absorb non-target light, and the grating is configured to perform diffractive dispersion on the target light. Each spectrum detection unit further includes a micro-fluid substrate and a sensor substrate including a photosensitive sensor configured to detect light from the micro-fluid substrate.